CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenues	$ 1,439.9	$ 1,279.1	$ 2,776.9	$ 2,408.6
Cost of sales	870.1	766.4	1,681.0	1,443.8
Gross Profit	569.8	512.7	1,095.9	964.8
Selling and administrative expenses	275.6	267.2	541.1	519.5
Amortization of intangible assets	83.6	80.3	169.8	164.5
Other operating expense, net	13.2	25.1	30.6	19.4
Operating Income	197.4	140.1	354.4	261.4
Interest expense	23.2	22.7	42.2	45.8
Loss on extinguishment of debt	1.1	0.0	1.1	0.0
Other income, net	(7.4)	(34.1)	(12.0)	(36.6)
Income from Continuing Operations Before Income Taxes	180.5	151.5	323.1	252.2
Provision for income taxes	41.9	12.5	74.3	23.1
Loss on equity method investments	(0.8)	(0.7)	(5.1)	(0.7)
Income from Continuing Operations	137.8	138.3	243.7	228.4
Income (loss) from discontinued operations, net of tax	1.5	96.3	0.1	(83.9)
Net Income	139.3	234.6	243.8	144.5
Less: Net income attributable to noncontrolling interests	0.8	0.7	1.6	1.0
Net Income Attributable to Ingersoll Rand Inc.	138.5	233.9	242.2	143.5
Amounts attributable to Ingersoll Rand Inc. common stockholders:
Income from continuing operations, net of tax	137.0	137.6	242.1	227.4
Income (loss) from discontinued operations, net of tax	1.5	96.3	0.1	(83.9)
Net Income Attributable to Ingersoll Rand Inc.	$ 138.5	$ 233.9	$ 242.2	$ 143.5
Basic earnings (loss) per share of common stock:
Earnings from continuing operations (in usd per share)	$ 0.34	$ 0.33	$ 0.60	$ 0.54
Earnings (loss) from discontinued operations (in usd per share)	0	0.23	0	(0.20)
Net earnings (in usd per share)	0.34	0.56	0.60	0.34
Diluted earnings (loss) per share of common stock:
Earnings from continuing operations (in usd per share)	0.33	0.32	0.59	0.53
Earnings (loss) from discontinued operations (in usd per share)	0	0.23	0	(0.20)
Net earnings (in usd per share)	$ 0.34	$ 0.55	$ 0.59	$ 0.34